TY - CHAP M1 - Book, Section TI - Antibacterial Drugs: Resistance A1 - Levinson, Warren A1 - Chin-Hong, Peter A1 - Joyce, Elizabeth A. A1 - Nussbaum, Jesse A1 - Schwartz, Brian PY - 2022 T2 - Review of Medical Microbiology & Immunology: A Guide to Clinical Infectious Diseases, 17e AB - There are four major mechanisms that mediate bacterial resistance to drugs (Table 11–1). (1) Bacteria produce enzymes that inactivate drugs. (2) Bacteria synthesize modified targets against which the drug has a reduced effect. (3) Bacteria reduce permeability to the drug such that an effective intracellular concentration of the drug is not achieved. (4) Bacteria actively export drugs using a “multidrug-resistance pump.” The multidrug-resistant (MDR) pump imports protons and, in an exchange-type reaction, exports a variety of foreign molecules including certain antibiotics, such as tetracyclines. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - accessmedicine.mhmedical.com/content.aspx?aid=1190859653 ER -